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Finding the Fourth Proportional to 108,694.98, 149,996.75 and 60,947.28

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Solution

The fourth proportional to 108,694.98, 149,996.75 and 60,947.28 is: 84,105.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,694.98 : 149,996.75 = 60,947.28 : x
  2. Step 2: Convert to fraction form
    108,694.98/149,996.75 = 60,947.28/x
  3. Step 3: Cross multiply
    108,694.98x = 149,996.75 × 60,947.28
  4. Step 4: Simplify right side
    108,694.98x = 9,141,893,616.60
  5. Step 5: Solve for x
    x = 9,141,893,616.60/108,694.98
  6. Step 6: Final answer
    x = 84,105.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.